sentry_engineering

# Ios

7 posts

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Building Type-Safe Metrics API in Swift: Part II

date: February 9, 2026 author: Phil Niedertscheider

Replace Any with type-safe protocols, handle array conformance limitations, and future-proof your Swift enums.
Building Type-Safe Metrics API in Swift: Part I

date: February 9, 2026 author: Phil Niedertscheider

Explore protocol extensions, enums with associated values, and ExpressibleByStringLiteral to build type-safe Swift APIs.
"Swizzling" iOS functions in Swift

date: January 10, 2026 author: Noah Martin

How to hook pure Swift functions at runtime using an in-process debugger.
Next Halloween I’m dressing as O(n^2)

date: December 19, 2025 author: Hector Dearman

Dawson’s first law of computing strikes twice.
Reverse Engineering iOS to Fix SDK Crashes

date: December 3, 2025 author: Phil Niedertscheider

We reverse-engineered a private iOS framework to uncover why iPadOS 26 broke type casting in our SDK.
Mobile App Launch Profiling

date: September 27, 2024 author: Andrew McKnight

See what's happening in your app before your first line of code can even run.
Building a Performant iOS Profiler

date: October 6, 2022 author: Indragie Karunaratne

Profilers measure the performance of a program at runtime by adding instrumentation to collect information about the frequency and duration of function calls. They are crucial tools for understanding the real-world pe...